I made it at home where I work on a fairly new iMac and as I looked at my post again this morning at work (on an older iMac) I noticed that I can't discern the reflection I created under the picture. You would have to enlarge it to see it clearly, I think.

I can see a faint outline when I enlarge it....is your background colour black? That's what I'm seeing. I *love* their expressions of defiance.....you lookin at me? 'Us' against the world. A great photo.

The background colour is black and on my screen it looks as though the picture is reflected on black glass. This effect is lost here completely and it's a strong feature of this wallpaper. As soon as I'm home I'll do a version where the reflection is more pronounced, I think.